This paper deals with a study of central hemodynamics in 363 pediatric patients with burn shock as compared with a reference healthy children group in order to establish clinical value of the hemodynamic parameters for burn shock diagnostics and therapy.

Up to the present, ECGs have been classified on the basis of the analysis of the ECG curve shape. But this made impossible to classify many ECG shapes. The most promising methods for the classification must evaluate each of the 10 cardiac cycle phases both by their functions and hemodynamic parameters. The aim hereof is to develop the new classification principles for all possible ECG shape variations.

The results of study of an artificial aortic valve by the heart cycle phase analysis are given in the paper. The main aim of the study is identifying the artificial aortic valve influence on cardiovascular system functions, the way and ranges of these functions change. The results of phase blood volume measurement and the numerical values that characterize the metabolic processes in heart muscles are given herein.

Attempts to create an artificial heart were highlighted by our journal one year ago. Now we can say that there is no break-through news in this field: no technological progress, no pioneering
research and no spectacular advancements are reported.

Conventional methods for arterial pressure (AP) measurement are not capable of
identifying it in each cardiac cycle. Besides, they ignore many significant factors. The
paper reports on an innovative method based on cardiac cycle phase analysis for
detecting systolic and diastolic AP changes in each cardiac cycle using synchronous
digitally processed ECG and Rheo recordings. Considered is the phase mechanism of
the natural diastolic pressure regulation. The diastolic AP changes referred to the
physiological norm and aortic dilatation status are also assessed.

The paper reviews the existing methods for hemodynamic parameters measurement,
namely the Fick method, the thermodilution technique and the Cardiocode
technology. Comparative analysis of the above methods is presented. Strong and weak
points in each method and their informative values are identified. Distinctive features
of the Cardiocode method, as the only noninvasive one, are described.

The paper presents some interesting data and findings on the study of the performance of the cardiovascular system in long-living individuals aged over 90. In this case, highland area individuals of this class are compared with those in flatland areas.

The new high-tech era begins not with supply of an innovative product to the market, but rather with an intellectual leap in the field of open issues in fundamental engineering, healthcare and education. In the present essay, an example of the successful translation of mathematical, physics- and engineering-related philosophy into the digital platform of Cardiometry is discussed. The theory of hemodynamics, the laws of axiomatics, logic and adaptation can be expressed in terms of mathematics. The original analytical software used in PC-assisted device Cardiocode allows carrying out a phase analysis of the hemodynamics within an extended range.